Filling-tube for liquids.



PATENTED JUNE 14, 1904.

A. SGHNBIDER'. FILLING TUBE FOR LIQUIDS.

APPLIOATION FILED JUHE 16, 1903.

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APPLICATION IILED JUNE 15,1903.

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Q" i 3 m6 3 v 1.. J V 1 ZEEEFK l WWI All/ ll I ll ll RS co, morauwo,wAsumuTou n c UNITED STATES Patented June 14, 1904.

PATENT OFFICE.

ADOLPI-I SCHNEIDER; OF CHICAGO, ILLINOIS.

FILLING-TUBE LIQUIDS.

SPECIFICATION'forming part of Letters Patent No. 762,442, dated June 14,190 1.

Application filed June 15, 1903.

To all whom it may concern:

Be it known that I, ADoLrH SCHNEIDER, a citizen of the United States,residing at Chicago, in the State'of Illinois, have invented certain newand useful Improvements in Filling-Tubes for Liquids, of which thefollowing is a specification.

This invention relates to filling-tubes for use in filling bottles,jugs, kegs, barrels, and other packages with liquid under an equalizedpressure between the tank containing the liquid and the package to befilled therewith. Y

The objects of the invention are to construct a sectional filling-tubethe lowersection of which is slidable on'the upper section, with the twosections so arranged .and operating that the initial upward movement ofthe lower section vents pressure from the fillingtank into the package,equalizing-the pressure between the tank and the package before theadmission of liquid from the tank into the package and withthe fulladmission of the liquid-supply tube into the package for its lower endto contact the bottom of the package, have the'upward movement of thepackage raise both sections of the filling-tube and open theliquid-passage for the liquid to flow through the liquid-supply tubeinto the package, to hold the two sections of the filling-tube under ayielding force which will allow the lowermost section to be raisedwithout raising the uppermost section for first venting pressure fromthe filling-tank into the package, to automatically actuate bothsections of the filling-tube, to equalize the pressure and supply theliquid by elevating the to-be-filled package after it is connected withthefilling-tnbe, to enable the two sections of the filling-tube tocontrol in and of themselves the admission of pressure and liquid intothe to-be-lilled package, and to improve generally the construction andoperation of the filling-tube as a whole.

The invention consists in the features of construction and combinationof parts hereinafter described and claimed.

In the drawings, Figure 1 is a sectional elevation of the filling-tubeof the invention, showing the use thereof in connection with a SerialNo. 161,474. (No model.)

bottle with the pressure passage and the liquid-passage closed; Fig. 2,a sectional elevation of the filling-tube of the invention, showing theuse thereof in connection with a keg or barrel with the pressure-passageopen. and the liquid-passage closed; Fig. 3, a sectional elevation ofthe filling-tube of the invention, showing the use thereof in connec-Ttion with a bottle with the pressure-passage and the liquid-passageboth open; Fig. 4, a lsectional elevation showing a modification in 3the arrangement of the pressure-passage and Zthe liquid-passage; Fig. 5,a sectional eleva- Jtion showing a modification in the arrangement ofthe pressure-passage and the liq uidpassage, the pressure-passage beingoutside of the tube as a whole; Fig. 6, a cross-section l on the line ofthe exterior of the filling-tank, taken through the filling-tube; andFig. 7, a cross-section on line 7 of Fig. 1. The construction shown inFigs. 1, 2, 3, 6, and 7 has a tube A, constituting the upper section ofthe filling-tube, and a tube or casiing B, constituting the lowersection of the filling-tube, with the tube or casing B free to i slideon the exterior of the tube A in the operation of filling the package.The tube A at 5 its lower end has thereon a flange a, and its upper endhas threaded thereunto a ring-nut fa to permit of the insertion of thetube'A into the tank containing the liquid. The tube or casingB hasatits upper end a shoulder orabutment 7) to coact with the flange (0 tolimit the downward movement of the tubular casing B, and, as shown,between the flange a and the shoulder or abutment b is a packing I) toinsure a tight joint at that point when the tube and the casing B isdown.

A coiled spring C encircles the tube A, which spring serves to forcedown the tube or casing B, and at the same time allows the tube orcasing B to slide upward on the tube A, asv hereinafter described. Asupply-tube D is threaded into the lower end of the tubeA'and; extendsthrough and projects beyond the-lower end of the tube or casing B and isof sufficient length for its lower end to contact the bottom. of thepackage to be filled. The tube-A has therein a longitudinal passage 0for the flow of pressure through the tube, and this tube A also hastherein a longitudinal passage (Z, the lower end of which is incommunication with the supply-tube I) and the upper end of which opensthrough the wall of the tube A by a port (5. The lower end of thepressurepas sage 0 opens through the wall of the tube A by a port 0,which when the tube or casing B is down is in communication with anannular passage 0 between the exterior of the tube A and the wall of theshoulder 71, which passage 0 is closed tight by the packing 7), so thatpressure cannot escape until the tube or casing B is raised, as shown inFig. 2. The flange (1/ is located in a chamber a" of the tube or casingB, and this flange is of a less diameter than the'interior diameter ofthe chamber, so as to leave a passage c, by which pressure flowingthrough the passage 0 can enter the chamber 0 when the tube or casingBis raised, as shown in Fig. 2, and when the tube or casing B is raisedthe pressure is free to flow from the chamber 0", through a passage 0,around the filling-tube D into the to-be-filled package. As shown inFigs. 1 and 3, a bottle E is the to-be-filled package, and, as shown inFig. 2, a barrel or keg E is the to-be-iilled package. The tube orcasingB at its lower end is in the form of a plug B, screw-threaded intothe tube or easing B, and this plug B, for use with a bottle, has atapered opening or chamber therein which receives a packing 0, againstwhich the end a of the bottle impinges and fits snugly, so as to make atight joint against the escape of pressure flowing through the passage0", which pressure when the bottle is in place enters the chamber oropening 0 of the packiilg a and flows into the bottle through thepassage 0 between the supply-tube and the mouth or opening of thebottle. The bottle is entered onto the supply-tube D, with its neck orhead end a fitting snugly within the packing c, and when entered theraising of the bottle carries with it the tube or casing B, raising thetube or casing to open the port 0 below the passage 0 for the pressureto escape in the chamber 0" through the passage 0 and enter the bottle,equalizing the pressure between the tank containing the liquid and thebottle. The construction shown in Fig. 2 has the packing a", encirclinga tapered plug B, threaded into the lower end of the tube or casing B,which packing enters the bung-hole of the barrel or keg, making a tightjoint, so that pressure can enter the barrel or keg without escapingtherefrom, the pressure flowing into the barrel or keg from the passage0, through the port 0 into the chamber c,th rough the passage 0', andfrom the chamber flowing into the barrel or keg through the passagearound the supply-tube. The bottom of a filling-tank F is all that isshown, it not being deemed necessary to show a filling or liquidcontaining tank, as such tank can be of any usual and well-known form ofconstruction having its lower portion adapted for containing liquid andits upper portion forming a chamber for the pressure. The end of thetube A has threaded thereinto in the construction shown in Figs. 1, 2,and 3 a tube f, the upper end of which communicates with thepressure-chamber of the tank F, so that pressure can flow from thechamber through the tube f into the passage 0 to discharge into thepackage to be filled with liquid. A bushing G is entered into the wallof the liquid-containing-tank, which bushing has a wall ,r screwthreadedon its exterior and an annular rim 7 fitting against the face of thewall of the tank, and, as shown, the bushing is held in place by aring-nut g threaded on the wall of the bushing, clamping the bushingfirmly in place. A packing a? is located around the upper end of thetube A between the ring-nut a and the face of the rim 9, which packingforms a tight joint against leakage of the liquid at that point. Acap-nut or followernut H, having a side wall it and an end wall A, isentered onto the tube A with the side wall threaded onto the wall g ofthe bushing, and between the end of the bushing and the end wall It ofthe cap-nut H is a packing 7L making a tight joint around the tube A'atthis point. A plug-nut or follower I, having a body '1 and a flange vi,is threaded into the end of the tube or casing B, and between the endface of the tube or casing and the flange '1? is a packing 71 andbetween the end face of the body 2' and the shoulder d of the tube orcasing is a packing cl, by means of which packings a tight joint isassured around the fillingtube and between the tube A and the tube orcasing B against the escape of pressure. The springC at its upper endabuts against the cap-nut H and at its lower end abuts against theplug-nut I in the arrangement shown.

The parts entering into the construction shown in Figs. 1, 2, 3, 6, and7are assembled by entering the tube A through the plug-nut 1 and the tubeor casing B, for which purpose the end plug B is removed, so that thetube A, with its flange (0, can be entered into place with the flange (4within the chamber 0 of the tube or casing B, after which the plug B isthreaded into the tube or casing B and the plug-nut l is screwed toplace, completing the attachment of the tube or casing B to the tube A.The spring C is entered onto the tubeA and the cap-nut H is entered ontothe tube A, and the end of the tube is passed through the bushing (ir,which has been at tached to the bottom of the tank F, after which thecap-nut H is screwed to place and the ring-nut a is entered on the endof the tube A, it being understood that the various packings (1, I), It,v7, and 11 have been placed in position so as to be compressed by theaction of the ring-nut a, cap-nut H, and plugnut 1. The pressure-supplytube fis threaded into the end of the tube, which completes the IIOassembling of the filling-tube as a whole ready for use.

In use for filling a bottle the head or neck end of the bottle isentered into the opening of the packing @,so that atight joint is formedaround the end of the bottle. The bottle is then raised sufficiently forthe passage 0 to be raised above the port 0, which opens the passage cfor pressure to flow from the chamber of the tank F through the pipe f,passage 0, port 0, and passage 0* into the chamber 0 and to flow fromthe chamber 0 through the passage 0 into the chamber or opening 0 andenter the bottle through the passage a equalizing the pressure betweenthe tank and the bottle. The upward movement of the package or thebottle is continued until the lower end of the filling-tube D strikesthe bottom of the bottle, and when the end of the fillingtube engageswith the bottom of the bottle a further upward movement of the bottleraises the tube or easing B and the tube A for the upward movement ofthe tube A to raise the port d above the face of the flange ,r/ of thebushing, opening the passage (Z through the port /Z"'to the admission ofliquid, which flows from the tank through the passage (Z andsupply-tube 1) into the bottle, filling the bottle with the liquid. Theliquid as it rises in the bottle forces the pressure therefrom back intothe tank through the passage 0 chamber or opening 0 passage 0", chamber0, passage 0, port 0, passage 0, and tube f, with the result that theliquid flows into the bottle under an equalized pressure until thebottle is filled, thus preventing foaming and wastage of the liquid.After the bottle is filled the force by which itis held in its raisedposition is removed, allowing the spring G to act and force back or downtheitube or casing B, closing the port 0 and preventing the escape ofpressure and also returning the tube A, closing the port (Z, andstopping the flow of liquid through the passage (Z into the bottle, andwith the parts returned to normal position, as shown in Fig. 1, thebottle can be removed and will still be under sufficient pressure toprevent foaming when removed and stoppered or corked. A new bottle isentered into the packing (Z, and the parts are again operated, as abovedescribed, by raising the bottle to open the pressure-passage andequalize the pressure and by raising the bottle still farther to openthe liquid-passage for the admission of liquid, and when lilled thebottle can be removed. The operation canbe continued until the requirednumber of bottles have been filled. The operation with a barrel or kegis the same as described for filling bottles so far as concerns theequalizing of pressure and the admission of liquid by first raising thetube or casing B to equalize the pressure and then raising the tube orcasing B and the tube A to admit the liquid.

The construction shown in Fig. 4 differs from the construction shown inFigs. 1, 2, and 3 in havinga liquid-passage A of greater diameter thanthe liquid-passage (Z and in having a pressure tube f, which passesthrough the liquid-passage A with its lower end in communication wit-h aport leading throughthe wall of the tube A into the passage 0 when theparts are in normal position. The tube f passes through a plug-nut a,threaded into the end of the tube A, and a port (Z furnishescommunication between the interior of the tank F and the passage A whenthe tube A is raised. The operation of the filling-tube shown in Fig. 4so far as concerns the equalizing of pressure and the admission ofliquid is the same as described for the construction of filling-tubeshown in Figs.

1, 2, and 3. The construction of filling-tube shown in Fig. 5 ispractically the same as the construction shown in Fig. 45, except thatinstead of having a pressure-supply tube f" within the liquid-passage Aof the tube A a pressure-fluid-supply tube f in the form of a hose orother suitable pipe is used, one end of the hose or pipe f beingattached to a nipple f in the tank F and the other end being attached toa nipple f', entered through the wall of the tube or casing B tocommunicate with the passage 0 The operation of the filling-tube as awhole (shown in Fig. 5) is the same as the operation of the fillingtubeshown in Figs. 1, 2, and 3 so far as concerns the equalizing of pressureand the admission of liquid tothe package.

The filling-tube of my invention is simple in construction, but will befound effective and reliable in use. The making of the tube in twosections, one sliding on the other, onables an initial movement to beobtained by which a free passage for pressure to enter the package andequalize the pressure between the tank and the package and this withoutopening the filling-tube for the admission of liquid, and when thepressure is equalized both sections of the filling-tube can be moved asone, opening the liquid-passage without clos ing the pressure-passage.The movements of both sections of the filling-tube are dependent on theupward movement of the package to be filled, so that when the package isin place and raised assurance is had that the pressure will be firstequalized before the liquid is admitted, and with the equalization ofpressure the liquid is admitted. The lower section of the filling-tubecontrols the admission of pressure, and the upper section of thefilling-tube controls the admission of liquid, so that the control ofthe pressure and the liquid are LCl1i11l81')C11(lQnt of the other and atthe same time both are dependent on the movements of the filling-tube asa whole, and after a package has been filled the removal of the packageinsures the closing of both the pressure-su ppl y passage and theliquid-supply passage, making the control of the two passages in openingand closing both positive and dependent on the entering oi the packageinto lilling position and the removal of the package after being lilled.

It will be seen that the passage 0, the pipe f, and the hose f each forma conduit for the transmission of pressure from the chamber containingthe fluid-pressure to enter the tobe-filled package and that in eachinstance this conduit is wholly independent of and has no connectionwith the liquid-passage ol the filling-tube. "Ihe conduit no matter inwhat way arranged or how formed. opens into a chamber or annular passagein the lower tube or casing, so that with the raising of the lower tubeor casing a free exit for the supply-pressure is obtained, which exit isunder the control of the lower section of the-lilling-tube as a whole.

What I regard as new, and desire to secure by Letters Patent, isv 1. Ina filling-tube for liquids, the combination of a slidable primary tubehaving therein a passage for liquid, a conduit for fluid-pressure, and asecond tube slidable on the slidable primary tube and into the interiorof which the fluid-pressure conduit opens exteriorly of the slidableprimary tube for controlling the flow of fluid-pressure into and outfrom the conduit or passage therefor, substantially as described.

2. In a filling-tube for liquids, the combination of a slidable primarytube having therein a passage for liquid, a conduit for fluid-pressure,a second tube slid able on the slid able primary tube and into theinterior of which the fluid-pressure conduit opens exteriorly ot' theslidable primary tube for controlling the flow of fluid-pressu re intoand out from the conduit therefor, a limiid-discharge tube extendingthrough the second tube and having communication with the liquid-passage of the slidable primary tube, and a spring encircling theslidable primary tube and. bearing against the slidable second tube,substantially as described.

3. In a filling-tube for liquids, the combination of aslidable primarytube having therein a passage for fluid-pressure and a passage forliquid, a second tube slidable on the slidable primary tube and into theinterior of which the fl'.1i(,lpressure passage opens exteriorly of theslidable primary tube for controlling the outflow of pressure into andout from the fluidpressure passage therefor, substantially as described.

4. In a filling-tube for liquids, the combination of a slidable primarytube having therein a passage for fluid-pressure and a passage forliquid, and a second tube slidable on the slidable primary tube and intothe interior of which the fluid-pressure passage opens exte riorly ofthe slidable primary tube for controllingthe outflow of pressure intoand out from the fluid-pressu re passage therefor, and a springencircling the slidable primary tube and bearing against the slidablesecond tube, substantially as described.

5. In a filling-tube for liquids, the combination of a slidable primarytube having therein a passage for fluid-pressure and a passage forliquid, a second tube slidable on the slidable primary tube and into theinterior of which the fluid-pressure passage opens exteriorly of theslidable primary tube for controlling the outflow of pressure into andout from the fluidpressure passage therefor, a spring encircling theslidable primary tube and bearing against the slidable second. tube, anda liquid-discharge tube extending through the second tube or casing andin communication with the liquidpassage of the slidable primary tube,substantially as described.

6. In a filling-tube for liquids, the combination of a slidable uppertube having a head at its top end and having therein a passage forflUld-DIGSSUI'G opening through the head of the tube with a port at itslower end opening through the wall of the tube and a passage for liquidwith a port at its upper end opening through the wall of the tube, and alower tube or casing slidable on the upper tube and into the interior ofwhich the fluid-pressure passage opens at its lower end exteriorly ofthe slidable upper tube for controlling the flow of pressure through theupper tube, substantially as described.

7. In a filling-tube for liquids, the combination of a slidable uppertube having a head at its top end and having therein a passage forfluid-pressure opening through the head of the tube with a port at itslower end opening through the wall of the tube and a passage for liquidwith a port at its upper end opening through the wall of the tube, alower tube or casing slidable on the upper-tube and into the interior ofwhich the fluid-pressure passage opens at its lower end exteriorly ofthe slidable upper tube for controlling the flow of pressure through theupper tube, a spring encircling the upper tube and bearing against thelower tube, a liquid-discharge pipe in communication with theliquid-passage of the slidable upper tube and extending through thelower tube, and a packing carried by the bottom end of the lower tube,substantially as described.

8. In a filling-tube for liquids, the combination of a slidable uppertube having a head at its top end and having therein a passage forfluid-pressure opening through the head of the tube with a port at itslower end openingthrough the wall of the tube and a passage for liquidwith a port at its upper end opening through the wall of the tube, alower tube or casing slidable on the upper tube and into the interior ofwhich the fluid-pressure passage opens at its lower end exteriorly ofthe slidable upper tube for controlling the flow of pressure through theupper tube, a spring encircling the upper tube and bearing against IIOthe lower tube, a liquid-discharge pipe in communication with theliquid-passage of the slidable upper tube and extending through thelower tube, a packing carried by the bottom end of the lower tube, and afluid-pressuresupply discharge-pipe in communication with the head endof the pressure-passage of the upper tube, substantially as described.

9. In a filling-tube for liquids, the combination of a slidable uppertube having a head at its top end and having therein a passage forfluid-pressure opening through the head of the tube with a port at itslower end opening through the wall of the tube anda passage for liquidwith a port at its upper end opening through the wall of the tube, alower tube or casing slidable on the upper tube and into the interior ofwhich the fluid-pressure passage opens at its lower end exteriorlyof theslidable upper tube for controlling the flow of pressure through theupper tube,a spring encircling the upper tube and bearing against thelower tube, a liquid-discharge pipe in communication with theliquid-passage of the slidable upper tube and extending through thelower tube, a packing carried by the bottom end of the lower tube, and abushing in which the upper tube is slidable for controlling theliquid-passage in the upper tube, substantially as described.

10. In a filling-tube for liquids, the combination of a slidable uppertube having a head at its top end and having therein a passage forfluid-pressure opening through the head of the tube with a port at itslower end opening through the wall of the tube and a passage for liquidwith a port at its upper end opening through the wall of the tube, alower tube or casing slidable on the upper tube and into the interior ofwhich the fluid-pressure passage opens at its lower end exteriorly ofthe slidable upper tube for controlling the flow of pressure through theupper tube, a

spring encircling the upper tube and bearing against the lower tube, aliquid-discharge pipe in communication with the liquid-passage of theslidable upper tube and extending through the lower tube, a packingcarried by the bottom end of the lower tube, a bushing in which theupper tube is slidable for controlling the liquid-passage in the uppertube, and a cap-nut with a packing around the upper tube and enteredonto the bushing, substantially as described.

11. In a filling-tube for liquids, the combination of a slidable uppertube having a head at its top end and having therein a passage forfluid-pressure opening through the head or the tube with a port at itslower end opening through the wall of the tube and a passage for liquidwith a port at its upper end opening through the wall of the tube, alower tube or casing slidable on the upper tube and into the interior ofwhich the fluid-pressure passage opens at its lower end exteriorly ofthe slidable upper tube for controlling the flow of pressure through theupper tube, a spring encircling the upper tube and bearing against thelower tube, a liquid-discharge pipe in communication with theliquid-passage of the slidable upper tube and extending through thelower tube, a packing carried by the bottom end of the lower tube, abushing in which the upper tube is slidable for controlling theliquid-passage in the upper tube, a cap-nut with a packing around theupper tube and entered onto the bushing, and a plug-nut and packingaround the upper tube and entered into the top of the lower tube,substantially as described.

ADOLPH SCHNEIDER.

